resize viewport of window maximization/minimization

src/main.c

@@ -37,6 +37,7 @@ static void poll_events(void) {
 
             switch (e.window.event) {
             case SDL_WINDOWEVENT_RESIZED:
+            case SDL_WINDOWEVENT_SIZE_CHANGED:
                 ctx.window_w = e.window.data1;
                 ctx.window_h = e.window.data2;
                 ctx.window_size_has_changed = true;